Figure 6: The respone of materials under the different environment. Note: (A) Photothermal effects of different nanomaterials under laser irradiation at 808 nm with a power density of 0.5 W/cm2. (B) Concentration-dependent photothermal effect of Fe3O4@PDA@PAMAM-G3 under irradiation of 808 nm laser with a power density of 0.5 W/cm2. (C) Photothermal stability evaluation of Fe3O4@PDA@PAMAM-G3 with five laser on and off cycles. (D) NO release profile of Fe3O4@PDA@PAMAM@PAMAM@NONOate under different laser irradiation conditions. PBS: Phosphate buffer saline; PDA: polydopamine; PAMAM: poly(amidoamine); PAMAM-G3: three generation dendritic poly(amidoamine); NO: nitric oxide. Reprinted with permission from Yu et al.